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v3.23.1

Summary of significant accounting policies (Tables) | 3 Months Ended
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Mar. 31, 2023
Accounting Policies [Abstract] |
Reconciliation of cash | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | End of |  | ​ | Beginning of
​ |  | period- |  | period-
​ |  | March 31, |  | December 31,
​ |  | 2023 | ​ | 2022
Cash and cash equivalents | ​ | $ | 167,495 | ​ | $ | 279,834
Restricted cash noncurrent included in deposits and other assets | ​ |  | 16,099 | ​ |  | 16,091
Restricted cash current included in prepaid expenses and other current assets | ​ | ​ | 50,000 | ​ | ​ | —
Total Cash, cash equivalents and restricted cash per statement of cash flows | ​ | $ | 233,594 | ​ | $ | 295,925
​
Schedule of Inventory | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | March 31, 2023 |  | December 31, 2022
Raw materials | ​ | $ | 1,097 | ​ | $ | 1,078
Work in progress | ​ |  | 18,438 | ​ |  | 14,074
Finished goods | ​ |  | 7,114 | ​ |  | 6,656
Total inventory | ​ | $ | 26,649 | ​ | $ | 21,808
​

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- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(c)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(b)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(a)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766 + Details
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